Heel breasting machine



' April 18; 1933- F. ASHWORTH HEEL BREASTING MACHINE Filed Nov. 6, 1930 ,2 sheets-sheet 1 VE/V T. a( AM April 18, 1933. F. AsHwoRTH HEEL BREASTING MACHINE v2 sheets-sheet 2 Filed Nov. 6, 1930 /N Vm TUR Patented `Apr. 1'8, 19.33

UNWED'- Istres vPATENT OFFICE :FRED ASHWORTH, OE WENHAM, MASSACHUSETTS, ASSIGNOR To UNITED SHOE MACHINERY COREORATTON, OE PETERSON, NEW JERSEY, A CORPORATION OE NEW JERSEY HEEL i EREAS'TING MACHINE.

This inventionrelates to a. machine for operating upon the heels of boots and shoes and particularly to mechanismsfor trimming off the portion of the top-lift which l projects beyond the breast of a Louis heel.

In the manufacture of womens shoes hav'- ing Louis heels, 'the heel is .frequently made of woodl and Covered, except as tothe breast portion, with thin upper leather or other material ofA a color to correspondto the color of the upper. The Vbreast portion of the heel is usually covered by a flap Split from the grain face of the portion of the sole that extends from the heel seat. This Hap is turned down and cemented to the breast face of. the heel to cover the breast and alsothe edges of the material which is used to cover the remainder of the heel. 1 A leather top-lift is attached to the tread faceV of the heely thus .formed and the breast end of the .top-lift is subsequently f trimmed Off Hush with-the leatherV covered breast faceo'f the heel.'` The contour of the breast face of the hee-l varies with different Sizes and styles of Louisheels which necessitates removing the cutting mechanism and replacing it with another whenever heels having diere'nt characteristics are to be breasted.

vThe top-lift is trimmed flush with the heel breast and since there is a relative movement between the breasting -knife land i. the heel breast, there is a possibility v-of damaging the heel breast covering.

An obj ect of the present invention is to provide areadily detachable breasting unit for trimming offthe projecting end of' a top-lift flush with the heel breast in which a breasting knife and work support are arranged for relative movement. r

'A feature of the inventionconsists in the combination of a permanent frame, apermanent driving mechanism supported in the frame, and a detachable breasting unit comprising a. relatively movable breasting knife and work support mounted upon the frame in co-operating relation tothe'driving mechani'sm.` In the illustrated embodiment of the invention, the breasting unit is secured to a frame by means of a pair of barshaving slots at their lower ends Cso-operating with a pair ofk members for rigidly and detachably securing the breasting unit to the machine frame. The members co-operating with the locking means and the bars are so mounted that they may easily be Aunlocked to vpermit the ready -removall of the breasting unit.

Another 'object of the invention is to provide an effective work gage and guard which will prevent marring of the heel breast cover ing.

Another feature of theinventiomaccordingly, resides in a heel breasting machine provided with a heelbreasting knife and a combined work gage and guard movable with a .heelfand slidable upon a face of the knife'- transversely of its cutting edge.

In the drawings, Fig. 1 is a perspective view of the machine; Fig. 2 is a view, partly in section, of a side elevation of the machine v; f

gig. 3 is a plan view of the gage and knife; Fig. 4 is an elevation, partly vin section, of the knife and gage mounting.

In the illustrated embodiment of the invention, 6 represents the frame of the machine. The frame 6 1s provided with bearings 8 and 10 in which a Shaft 12 is journaled. The

shaft 12 is rotated by a belt 14 and a pulley (not Shown) and the stopping' of the machine may be accomplished by shifting the `beltfto a loose pulley 16. An eccentric 18 isomade fast to, or Yintegral with, the other end of the shaft 12 for reciprocating the operatinginstrumentalities of the machine', as will herein'- after be more fully described. The breasting unit 19, which includes a breasting knife 22 and a shear block or work support 20, is detachably secured to the frame 6 in such a manner that it may be readily removed from the frame when it is desired to substituteanother operating head. Y

Inthe illustrated embodiment ofthe invention the `shear block 20 is mounted for movement relatively to a breasting'knife 22. The shear block 20, which acts also as a work support, is secured to a support 24A by means `unit 194by means of a cap screw 30 which passes through an elongated slot 32 in the support 24 to permit adjustment of the support relatively to the knife 22. The lower end of the support 24 is provided with a bolt 34 which has an enlarged end forming a bearing for a roller 36. rIhe roller 36 engages the eccentric 18 which operat-es to impart a vertical reciprocating movement to the work support 20, thus causing relative movement between the work support or shear block 20 and the knife 22.

The upper surface of the shear block20 which engages the tread surface of a top-lift 38 of a heel 40 is made at a pitch angle of approximately 4. This anglo may be varied depending upon the angle between the heel breast and the tread surface of the top-lift of the heel by substituting another shear block having a greater or smaller angle as desired. The shearing edge 42 of the shear block 20 is shaped 'to coincide with shape ofthe co-operating breasting knife 22.

The knife 22 is rigidly and adjustably secured to the operating head of the machine by means of set screws 44 passing through slots 46 in bars 48. Supporting arms 50 of the breasting unit 19 slide on the knife-supporting bars 48. rEhe knife is adjustably mounted so that it may be readjusted after it has become worn by grinding or for adjusting a fresh knife relat'vely to the shear block. riChe bars 48 extend down into bosses 52 formed in the frame` 6 of the machine. Slots or grooves 54 are formed in each bar 48 and are engaged by pins 56 which are arranged to slide in horizontal bosses 58. rlfhe pins 56 hold the bars 48 in their proper position and the breasting unit 19 to the frame of the machine. A combined work guard and gage 60 made of relatively thin flexible metal and slidable upon the cutting face of the knife 22 transversely of its cutting edge is yieldably mounted on the bars 48 by sleeves 62 which slide on reduced end portions of the bars 48. The gage 60 engages a shoulder 61 on each of the sleeves 62 and, by means of springs 64 which are held under compression by pinned washers 66, is normali held in the position shown in Fig. l of the rawings.

In order that the breasting unit may be held in position and be removed or replaced readily the pins 56 are pivotally mounted at 68 to a lever 70 which is fulcrumed to the frame 6 by a pin 72. The upper'end of the lever 70 is forked and journaled to provide bearings for a rod 74 which acts both as a pivot for a dog 76 and also as a handle for conveniently swinging the lever 70 about its axis to disengage the pins 56 from the slots 54. The dog 7 6 is held in the position shown in Fig. 2 by means of springs 78 which are secured at one end to the dog 76 and at the other end to the machine frame 6. The free end of the dog 7 6 engages a crossbar 80 which connects the lower ends of the supporting arms 50. The free end of the dog 7 6 is spring-inclined so that it will not slip olf of the bar 80. This construction causes the support to be returned to its original position after the support has been moved upwardly by the action of the eccentric 18 on the roller 36.

Although the parts of the machine have been described in detail, it may be well to summarize briefly the operation of the machine. A heel 40 is positioned on the shear block 2O with the breast face of the heel in contact with the gage 60, as shown in Fig. 2, while the shear block is in the position shown in Fig. l. The eccentric 18 then engages the roller 36 thus raising the block and causing the knife 22 to shear 'off a projecting portion of the top-lift 38. At the same time the work gage 60 moves upwardly with the heel 40, thus preventing sliding contact between the heel breast and the knife of the machine. The Vwork support 20 is then caused to return to its original position by the influence of the spring? 8. If it becomes necessary for any reason to replace the breasting unit by another unit it is only necessary to rotate the lever 7 0 in a clockwise direction, as viewed in Figs. 1 and 2, which will cause the pins 56 to leave the slot 54 in the upright bars 48 and also cause the dog 76 to be swung away from the'crossbar 80. The entire breasting unit may then be easily removed and another breasting unit substitutedV therefor.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a heel breasting machine, the combination of a permanent frame, permanent driving mechanism supported in the frame, and a detachable breasting unit mounted Vupon the frame in cooperative relation to the driving mechanism, said breasting unit comprising a relatively movable breasting knife and work support.

2. In a heel breasting machine, the combination of a permanent frame, permanent driving mechanism supported in the frame, and a detachable breasting unit mounted upon the frame, said breasting unit comprising a stationary breasting knife anda movable work support arranged in cooperative relation to said driving mechanism.

.3. In a heel breasting machine, the combi-V nation of a permanent frame, permanent driving mechanism including an eccentric lsupported in the frame, adetachable breasting unit mounted on the frame, said breasting unit comprising aV stationary breasting knife and a movable work support arranged in'cooperative relation to said driving mechanism, and means mounted on the machine frame constructed and arranged to lock the lbreasting unit to the machine frame.

r4l In a heel breasting machine, the combination of a permanent frame, permanent driving mechanism including an eccentric supported in the frame, a detachable breasting unit mounted on the frame, said `breasting unit comprising a stationary breasting knife and Va movable Work support arranged in cooperative relation to said driving mechanism, means constructed and arranged to lock the breasting unit to the machine frame, and means mounted on the locking means normally tending to return the Work support to its Work-receiving position.

5. In a heel breasting machine, the combination of a permanent frame, permanent driving mechanism including an eccentric supported in the frame, a detachable breasting unit mounted on the frame, said breasting unit comprising astationary breasting knife and a movable Work support arranged in cooperative relation to said driving mechanism, and a roller mounted on the movable Work support constructed and arranged to cooperate with the eccentric to reciprocate the Work support.

6. In a heel breasting machine, the combination of a permanent frame, permanent driving mechanism including an eccentric.

supported in the frame, a detachable breasting unit mounted on the frame, said breasting'v unit comprising a stationary breasting knife and a movable Work support arranged in cooperative relation to the driving mechanism, and means constructed and arranged to lock the breasting knife to the machine frame. Y

7. VIn a heel breasting machine, a permanent frame, means on the frame constructed and arranged to receive a breasting unit, and a detachable breasting unit mounted on the frame, said b-reasting unit comprising a stationary breasting knife, means on the-breasting unit arranged to cooperate With the means on the frame to detachably' secure they breasting unit to the machine frame, and a movable Work support arranged in cooperative relan tion to the driving mechanism. l

8. In a. heel breasting machine, the combination of a breasting knife and a combined Work gage and gua-rd movable With a heel and slidable upon a face `of the knife transversely of its cutting edge.

9. In a heel-breasting machine, the combination of a stationary breasting knife for trimming onpn the projecting portion of a toplift of a. heel, a movable heel support, and a guard between the knife and the breast face of a heel upon-said support, said guard being movable With the heel and arranged to prevent contact of said breast face of the heel With the knife.

10. In a heelbreasting machine, the combination of a stationary breasting knife for trimming off the projecting portion of a toplift attached to a heel, and a guard mounted between the knife and the breast face of a heel upon said support, said guard comprising a thin flexible strip of spring-metal mounted to move VWith the heel and tending to return to its normal position, said guard also being arranged to prevent contact of the` breast face of the heel With the knife.

11. In a heel breasting machine, a frame,

driving mechanism for moving the Work support relatively to the breasting knife.

12. In a heel breasting machine, a frame, driving mechanism supported on `the frame, a breasting knife for trimming off the projecting portion of the top-lift of a heel, a member constructed and arranged to engage the breast face of the heel to prevent contact of the knife with the heel breast, a Work support arranged to cooperate With the breasting knife to perform a trimming operation, and means on the Work support cooperating With the driving Vmechanism to reciprocate the Work support rela-tively to the breasting knife.

13. In a heel breasting machine, a frame, a drive shaft mounted on the frame, an eccentric on the drive shaft, and a detachable breasting unit comprising a breasting lmife, a Work support, and means mounted on the Work support cooperating with the eccentric for relatively moving the Work support and b-reasting knife.

In testimony whereof I have signed my name to this specification.

FRED ASHWORTII. 

